Performance & Maintenance Engine, forced induction, intakes, exhausts, torque converters, transmissions, etc.

IDLE surging and loosing Electric?

Thread Tools
 
Search this Thread
 
Old 09-15-08, 06:52 PM
  #1  
DETONATION
Driver School Candidate
Thread Starter
 
DETONATION's Avatar
 
Join Date: Nov 2007
Location: NY
Posts: 36
Likes: 0
Received 0 Likes on 0 Posts
Default IDLE surging and loosing Electric?

I pulled into the driveway in my 300 and it was idling up and down up and down and the passenger window wasnt going up. I popped the hood and checked all the vac lines I could see and the idle sensor was pluged in right. went back in the car and the car started again but the lights were going dim and then I shut it off. Now it wont start?? I'de asume it was something to do with the battery or altenator first before I replace sensors right? Anyone have similar problems?
Old 09-15-08, 07:16 PM
  #2  
itsme4g63
Driver
 
itsme4g63's Avatar
 
Join Date: Mar 2006
Location: IL
Posts: 100
Likes: 0
Received 0 Likes on 0 Posts
Default

jump start it, and while its rinning, disconnect the negative terminal from the battery, if the car dies, this means that the alternator is not charging the battery.When things happen such as your situation, then its most likely alternator because you've been running on battery juice for the last day or so and theres just not enough left to keep everything running, so the dash must've lit up with some sort of battery/aletrantor/power picture/led.
Old 09-15-08, 08:35 PM
  #3  
cbrasian
Lead Lap
 
cbrasian's Avatar
 
Join Date: Sep 2006
Location: ca
Posts: 691
Likes: 0
Received 1 Like on 1 Post
Default

sounds like alternator is going out but it can also be your crank pulley check to see if its not broken then check the alternator with a meter on it , it should read around 14.26 if its running ok. if possible charge the battery til it reads around 12.26 start the car and it should read close to 14.26 if its good
if it drops then the alternator is n't charging it,after you change the alternator you can also load test it to see if the battery is good by disconnecting the fuel going to engine and try cranking it and see what it drops down to if it drops past 10 then the battery is toast.... course the easiest way is to take both parts off and running to a local autozone and they will test both for you lol if your that lazy
Old 09-16-08, 03:07 PM
  #4  
itsme4g63
Driver
 
itsme4g63's Avatar
 
Join Date: Mar 2006
Location: IL
Posts: 100
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by cbrasian
sounds like alternator is going out but it can also be your crank pulley check to see if its not broken then check the alternator with a meter on it , it should read around 14.26 if its running ok. if possible charge the battery til it reads around 12.26 start the car and it should read close to 14.26 if its good
if it drops then the alternator is n't charging it,after you change the alternator you can also load test it to see if the battery is good by disconnecting the fuel going to engine and try cranking it and see what it drops down to if it drops past 10 then the battery is toast.... course the easiest way is to take both parts off and running to a local autozone and they will test both for you lol if your that lazy

Aye, soem autoparts stores have crummy alternator testers. I took a bad alternator to murrays and they read it was good, and the thing would put out maybe 11 volts max.
Old 09-17-08, 12:02 PM
  #5  
DETONATION
Driver School Candidate
Thread Starter
 
DETONATION's Avatar
 
Join Date: Nov 2007
Location: NY
Posts: 36
Likes: 0
Received 0 Likes on 0 Posts
Default

I didnt have Time to take it off yesterday So I went down to autozone with the alt that I took of my 2JZGTE to get that tested and buy a multimeter. Mine failed and the meter I bought was broken when I got home so Ill have to get one after work today to be able to test it.
Old 09-17-08, 12:05 PM
  #6  
DETONATION
Driver School Candidate
Thread Starter
 
DETONATION's Avatar
 
Join Date: Nov 2007
Location: NY
Posts: 36
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by cbrasian
sounds like alternator is going out but it can also be your crank pulley check to see if its not broken then check the alternator with a meter on it , it should read around 14.26 if its running ok. if possible charge the battery til it reads around 12.26 start the car and it should read close to 14.26 if its good
if it drops then the alternator is n't charging it,after you change the alternator you can also load test it to see if the battery is good by disconnecting the fuel going to engine and try cranking it and see what it drops down to if it drops past 10 then the battery is toast.... course the easiest way is to take both parts off and running to a local autozone and they will test both for you lol if your that lazy
Yeah I think Im gonna take them both out and get them tested I mean It couldnt hurt to try. If it werent either of them then could I have a bad ground somewhere? Ive looked at almost every inch and couldnt see anything disconected.
Old 09-18-08, 08:58 AM
  #7  
cbrasian
Lead Lap
 
cbrasian's Avatar
 
Join Date: Sep 2006
Location: ca
Posts: 691
Likes: 0
Received 1 Like on 1 Post
Default

well its not exactly a ground it would be a draw on the system a major draw easiest way to check it is to to check the voltage on the battery while its hooked up and not running and see if the voltage drops if it does then there is a good draw and youd then have to check fuses to see which one is getting power still while the car is off time consuming but this would be a slim chance most likely its a bad alternator and battery combo , or the possibility of a bad front crank pulley
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
bmgs400
GS - 2nd Gen (1998-2005)
10
02-03-20 07:41 AM
Israelq95
IS - 2nd Gen (2006-2013)
4
10-18-18 11:57 AM
topgun129
ES - 1st to 4th Gen (1990-2006)
11
08-03-13 10:02 AM
GSLEX0586
GS - 3rd Gen (2006-2011)
4
11-28-10 06:38 PM
azrick
SC430 - 2nd Gen (2001-2010)
5
03-25-10 05:58 PM



Quick Reply: IDLE surging and loosing Electric?



All times are GMT -7. The time now is 01:44 AM.